------------[ cut here ]------------
WARNING: CPU: 1 PID: 27767 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 1 PID: 27767 Comm: syz.7.4489 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Code: 24 45 31 f6 31 ff 89 de e8 5d 94 d8 ff 85 db 48 c7 c0 f2 ff ff ff 49 0f 44 c6 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 e0 90 d8 ff <0f> 0b e9 1c ff ff ff 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c ea fe
RSP: 0018:ffffc90000dd0918 EFLAGS: 00010006
RAX: ffffffff81a09160 RBX: 0000000000000008 RCX: ffff888078e7d940
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff888078e7d947 R09: 1ffff1100f1cfb28
R10: dffffc0000000000 R11: ffffed100f1cfb29 R12: ffff888078e7f0c8
R13: 00007ffffffff000 R14: ffffc90000dd0988 R15: 0000000020000000
FS:  00007f7ea23636c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f64b5030a08 CR3: 000000005a78b000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff1 DR7: 0000000000000600
Call Trace:
 <IRQ>
 bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline]
 ____bpf_probe_read_compat kernel/trace/bpf_trace.c:281 [inline]
 bpf_probe_read_compat+0xdd/0x170 kernel/trace/bpf_trace.c:277
 bpf_prog_63d51858d7cca270+0x3d/0x2c8
 bpf_dispatcher_nop_func include/linux/bpf.h:888 [inline]
 __bpf_prog_run include/linux/filter.h:628 [inline]
 bpf_prog_run include/linux/filter.h:635 [inline]
 bpf_overflow_handler+0x1c2/0x4a0 kernel/events/core.c:10297
 __perf_event_overflow+0x364/0x530 kernel/events/core.c:9515
 perf_swevent_hrtimer+0x41b/0x5b0 kernel/events/core.c:10934
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x4ad/0xb70 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x3bb/0x8d0 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1097 [inline]
 __sysvec_apic_timer_interrupt+0x137/0x4a0 arch/x86/kernel/apic/apic.c:1114
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0x9b/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:mutex_unlock+0x4/0x10 kernel/locking/mutex.c:536
Code: 24 80 e1 07 80 c1 03 38 c1 0f 8c 0c ff ff ff 48 8b 3c 24 e8 2e ab f9 f7 e9 fe fe ff ff 00 00 cc cc 00 00 cc cc 00 48 8b 34 24 <eb> 0a 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 57 41 56 41 55
RSP: 0018:ffffc900035dfc18 EFLAGS: 00000286
RAX: ffffffff819b1736 RBX: ffff8880235f0000 RCX: 0000000000080000
RDX: ffffc90012347000 RSI: ffffffff819b2a66 RDI: ffff8880235f0048
RBP: ffffc900035dfed8 R08: ffff88803bc911ff R09: 1ffff1100779223f
R10: dffffc0000000000 R11: ffffed1007792240 R12: 0000000040042408
R13: f8f8f8f8f8f8f8f8 R14: fffff520006bbf98 R15: 0000000000000000
 perf_event_ctx_unlock kernel/events/core.c:1413 [inline]
 perf_ioctl+0x2076/0x2340 kernel/events/core.c:5957
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f7ea4108f79
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7ea2363028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f7ea4382fa0 RCX: 00007f7ea4108f79
RDX: 0000000000000005 RSI: 0000000040042408 RDI: 0000000000000006
RBP: 00007f7ea419f7e0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f7ea4383038 R14: 00007f7ea4382fa0 R15: 00007ffde89e5f58
 </TASK>
----------------
Code disassembly (best guess):
   0:	24 80                	and    $0x80,%al
   2:	e1 07                	loope  0xb
   4:	80 c1 03             	add    $0x3,%cl
   7:	38 c1                	cmp    %al,%cl
   9:	0f 8c 0c ff ff ff    	jl     0xffffff1b
   f:	48 8b 3c 24          	mov    (%rsp),%rdi
  13:	e8 2e ab f9 f7       	call   0xf7f9ab46
  18:	e9 fe fe ff ff       	jmp    0xffffff1b
  1d:	00 00                	add    %al,(%rax)
  1f:	cc                   	int3
  20:	cc                   	int3
  21:	00 00                	add    %al,(%rax)
  23:	cc                   	int3
  24:	cc                   	int3
  25:	00 48 8b             	add    %cl,-0x75(%rax)
  28:	34 24                	xor    $0x24,%al
* 2a:	eb 0a                	jmp    0x36 <-- trapping instruction
  2c:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  33:	00 00 00
  36:	55                   	push   %rbp
  37:	48 89 e5             	mov    %rsp,%rbp
  3a:	41 57                	push   %r15
  3c:	41 56                	push   %r14
  3e:	41 55                	push   %r13